Working: The actors are currently both filming The Mortal Instruments: City of Bones together in the city

The young stars who met on the set of their new motion picture, seemed comfortable and at ease with each other as they left the venue.

Lily wore a smile on her face, clearly enjoying spending time with her beau away from the film set.

The duo have been spotted in various locations around the city making the most of each others company while they haven't been working.

Directed by Harald Zwart, the drama due in 2013 has a demonic theme, according the synopsis.

Having a laugh: Jamie and Lily were spotted having fun while grabbing a coffee together earlier in the month

When her mother is attacked and taken from their home in New York City by a demon, a seemingly ordinary teenage girl, Clary Fray, finds out truths about her past and bloodline on her quest to get her back, that changes her entire life.

In a recent interview with MTV, Lily gave her opinion on the perspective of the film, saying, ‘It’s really a story that’s based in reality as much as it is in this fantasy world. They’re coexisting.

‘It’s more emotionally and character-based than just aesthetically beautiful. It’s got amazing imagery and the CGI is going to be incredible, but it’s not just about that.’

Jamie was engaged to Harry Potter star Bonnie Wright,who played Ginny Weasley, up until July when they had spent two years in a relationship.

New love: Jamie was previously engaged to his Harry Potter co star Bonnie Wright for two years